I'll admit, I don't recognize the brand but it has a fair number of reviews and seem decently rated even when considering the rating with a handful of salt. It seems to need to have the proper region code set for the DVDs you'd be working with. There could be a power issue to consider. Some reviews of the Rooful unit suggest that they needed to have the MacBook plugged into power, others that it worked fine without that and/or with the supplied extra power cord. Apparently, the unit will not register on MacOS without a disk inserted and read.
There were a couple of others that I looked at but the end user experience was simply not consistent enough to warrant suggesting it.
I'll have the deep-fried battered pixie with balrog dipping sauce and a Hobgoblin ale.